Side Chain Redistribution as a Strategy to Boost Organic Electrochemical Transistor Performance and Stability
Side Chain Redistribution as a Strategy to Boost Organic Electrochemical Transistor Performance and Stability
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DOI：
10.1002/adma.202002748
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发表时间：
2020-08-05
影响因子：
29.4
通讯作者：
McCulloch, Iain
中科院分区：
文献类型：
--
作者：
Moser, Maximilian;Hidalgo, Tania Cecilia;McCulloch, Iain
设计和合成了一系列用于有机电化学晶体管（OECTs）的乙醇化多噻吩，它们的乙二醇链的分布不同，这些乙二醇链系在共轭主链上。虽然侧链再分配对聚合物的光电性能没有显著影响，但这种分子工程策略强烈影响了聚合物中的吸水性。通过精心优化聚合物薄膜的吸水率，开发出了具有前所未有的稳态性能的oect，在700次电化学开关循环中，其[μ C*]和电流保留率高达98%。
A series of glycolated polythiophenes for use in organic electrochemical transistors (OECTs) is designed and synthesized, differing in the distribution of their ethylene glycol chains that are tethered to the conjugated backbone. While side chain redistribution does not have a significant impact on the optoelectronic properties of the polymers, this molecular engineering strategy strongly impacts the water uptake achieved in the polymers. By careful optimization of the water uptake in the polymer films, OECTs with unprecedented steady-state performances in terms of [mu C*] and current retentions up to 98% over 700 electrochemical switching cycles are developed.